Colibri d'Angèle vs Colibri de Burmeister

The Blue-tufted Starthroat and Slender-tailed Woodstar can be distinguished primarily by their tail structure and plumage details. The Blue-tufted Starthroat has a more robust build with a distinctive blue tuft, while the Slender-tailed Woodstar is smaller and more delicate with a slender tail.

Look for the blue tuft on the throat of the Blue-tufted Starthroat. Note the slender tail of the Slender-tailed Woodstar, which is a key distinguishing feature.

The Blue-tufted Starthroat is larger and more robust compared to the smaller, more delicate Slender-tailed Woodstar.

The Blue-tufted Starthroat features a distinctive blue tuft on its throat, whereas the Slender-tailed Woodstar lacks this feature and has a more subtle plumage.